I had spilt some of my Vanilla soy latte on the floor and my 5 month old puppy licked it up right away!! Is he going to get sick?

He might have an upset tummy if he drank a lot of it but if it was only a splash odds are he will be fine.

Thanks!! He licks a lit too always always licking everything is he dehydrated? I never see him drink water :/

The licking might just be a habit, you can try spraying bitter sprays (available at pet stores) onto the floor, furniture etc. to deter him from licking.

I rarely see one of mine drinking, but he is not dehydrated.

If you are worried there are a few signs to look out for:
Symptoms of dehydration.. .

1. The skin loses elasticity as it loses moisture.
This can be somewhat misleading since younger and fatter dogs will have more elasticity than older, thinner dogs. It is important to have an idea of what your dog's skin looks and feels like on a normal basis. Pinch a little skin between your thumb and forefinger on your dog's back. When you release it, it should pop back into place immediately. (You can try this on the back of your own hand as an example) As the tissue under the skin loses moisture, the skin moves back more slowly. In extreme cases, the skin doesn't pop back.

2. The eyes appear sunken and lack moisture.

3. The mouth appears dry.. . gums and nose are dry.

4. Delayed capillary refill time
Pull up your dog's lip and look at his gums. Place your index finger firmly against the gums so that they appear white. Remove your finger and see how quickly the blood returns to the gums (they will become pink in that area again). This is called capillary refill time. If you do this when everything is normal, you will have a basis upon which to compare. The gums of a normal dog refill immediately, the gums of a dehydrated dog could take 3 seconds or so to return to their pink state.

Taken from: Dehydration in Dogs